Question

Continuously differentiable function (multivariable) on a compact set implies Lipschitz

score 470 · Answer 1 · 2026-04-12 18:14:58

470

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Continuously differentiable function (multivariable) on a compact set implies Lipschitz

Published on 12 Apr 2026 - 18:14

score 55 · Answer 2 · 2018-01-28 15:58:34

55

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Proving a limit exists using the definition of a limit $ \lim_{x\to\infty} {\sqrt{f(x)+1}}) = {\sqrt{L+1}} $

Published on 28 Jan 2018 - 15:58

score 50 · Answer 3 · 2026-04-13 02:45:55

50

Views

Why does $\frac{1}{N}\sum_{j=0}^{N-1} e^{2\pi ij(k-k')/N} = 0$?

Published on 13 Apr 2026 - 2:45

score 2.1k · Answer 4 · 2026-04-10 12:10:44

2.1k

Views

Region(area) enclosed between line and parabola

Published on 10 Apr 2026 - 12:10

score 83 · Answer 5 · 2018-01-28 16:19:10

83

Views

How to prove that $\lim\limits_{n\to\infty}\left(1+\frac{1}{p_n}\right)^{p_n}=e$?

Published on 28 Jan 2018 - 16:19

score 38 · Answer 6 · 2026-04-12 19:40:09

38

Views

Computing $\lim_{x\to c} [\![ x ]\!]$ for an integer $c$

Published on 12 Apr 2026 - 19:40

score 197 · Answer 7 · 2026-04-11 23:53:17

197

Views

Adding a constant to a Sigma notation

Published on 11 Apr 2026 - 23:53

score 1.5k · Answer 8 · 2026-04-12 21:47:56

1.5k

Views

How to integrate $\int\frac{1}{\sqrt{9-x^2}}dx$?

Published on 12 Apr 2026 - 21:47

score 450 · Answer 9 · 2026-03-24 23:58:04

450

Views

Show that the directional derivatives of $f$ and $g$ exist everywhere, but that there is a $u \neq 0$ for which $h'(0,u)$ does not

Published on 24 Mar 2026 - 23:58

score 102 · Answer 10 · 2026-04-13 16:12:21

102

Views

Let $C = \{\frac{a}{b}|a\in A, b\in B)$. Prove that $\sup C=\frac{\sup A}{\inf B}$

Published on 13 Apr 2026 - 16:12

score 202 · Answer 11 · 2026-04-09 01:53:23

202

Views

Angular values for input to a neural network

Published on 09 Apr 2026 - 1:53

score 94 · Answer 12 · 2026-03-25 06:13:27

94

Views

Let $f: [0,1] \to R$ be Riemann integrable, and let $a > 0$ be a real number. Show that $ f({x\over a})$ is Riemann integrable on $[0,a]$

Published on 25 Mar 2026 - 6:13

score 66 · Answer 13 · 2018-01-28 19:27:51

66

Views

Any mathematical significance?

Published on 28 Jan 2018 - 19:27

score 1.5k · Answer 14 · 2026-03-28 02:03:03

1.5k

Views

Reduced Row vs. Reduced Row-Echelon?

Published on 28 Mar 2026 - 2:03

score 169 · Answer 15 · 2026-03-24 19:08:41

169

Views

Solving $\int(x^2 + 1)^7x^3{\mathrm d}x$ without expansion

Published on 24 Mar 2026 - 19:08

List Question

Continuously differentiable function (multivariable) on a compact set implies Lipschitz

Proving a limit exists using the definition of a limit $ \lim_{x\to\infty} {\sqrt{f(x)+1}}) = {\sqrt{L+1}} $

Why does $\frac{1}{N}\sum_{j=0}^{N-1} e^{2\pi ij(k-k')/N} = 0$?

Region(area) enclosed between line and parabola

How to prove that $\lim\limits_{n\to\infty}\left(1+\frac{1}{p_n}\right)^{p_n}=e$?

Computing $\lim_{x\to c} [\![ x ]\!]$ for an integer $c$

Adding a constant to a Sigma notation

How to integrate $\int\frac{1}{\sqrt{9-x^2}}dx$?

Show that the directional derivatives of $f$ and $g$ exist everywhere, but that there is a $u \neq 0$ for which $h'(0,u)$ does not

Let $C = \{\frac{a}{b}|a\in A, b\in B)$. Prove that $\sup C=\frac{\sup A}{\inf B}$

Angular values for input to a neural network

Let $f: [0,1] \to R$ be Riemann integrable, and let $a > 0$ be a real number. Show that $ f({x\over a})$ is Riemann integrable on $[0,a]$

Any mathematical significance?

Reduced Row vs. Reduced Row-Echelon?

Solving $\int(x^2 + 1)^7x^3{\mathrm d}x$ without expansion

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